Who you gonna call if you're Sony Pictures and you want to reboot the lucrative "Ghostbusters" franchise? How about "Men in Black 3" scribe Etan Cohen, who has been tapped to rewrite "Ghostbusters 3" for the studio. "The Office" scribes Lee Eisenberg and Gene Stupnitsky were hired in September 2008 to revive the blockbuster franchise that started in 1984 with Ivan Reitman's "Ghostbusters." At the time, the supernatural action-comedy was Columbia Pictures' highest-grossing film ever, until it was beaten by "Men in Black" and then "Spider-Man." Third installment is expected to find original cast members Harold Ramis, Dan Aykroyd, Ernie Hudson and Bill Murray passing the torch to a new generation of ghostbusters. Cohen previously wrote Ben Stiller's "Tropic Thunder" and Mike Judge's "Idiocracy." He's also attached to make his directorial debut with Paramount's horror-comedy "Boy Scouts vs. Zombies," which follows three high school Boy Scouts who must use their skills to save their small town from a vicious zombie outbreak. Cohen was the sole credited writer on "Men in Black 3," which has grossed more than $600 million worldwide since opening at the end of May. Cohen is repped by CAA, Mosaic and attorney Peter Nichols.